WO2017001079A1

WO2017001079A1 - Computer system, expansion component, auxiliary supply component, and use thereof

Info

Publication number: WO2017001079A1
Application number: PCT/EP2016/058653
Authority: WO
Inventors: Erich Pilz
Original assignee: Fujitsu Technology Solutions Intellectual Property Gmbh
Priority date: 2015-07-01
Filing date: 2016-04-19
Publication date: 2017-01-05
Also published as: DE102015110611B3; US20180120908A1; US10481649B2; EP3129844B1; EP3129844A1

Abstract

The invention relates to a computer system (1) comprising a power supply unit for providing operating energy to the computer system (1) and a system circuit board (2) which is connected to the power supply unit and which comprises a plurality of expansion terminals (7) for connecting a corresponding plurality of expansion components, wherein each expansion terminal (7) is assigned a fixed output budget for supplying a corresponding expansion component. The computer system further comprises a first expansion component which is connected to a first expansion terminal (7a) of the system circuit board (2) and at least one auxiliary supply component which is arranged in the region of a second expansion terminal (7b) of the system circuit board (2). The auxiliary supply component is electrically connected to the first expansion component and is designed to dispense at least one part of the output budget assigned to the second expansion terminal (7b) to the first expansion component. The invention additionally relates to an expansion component and an auxiliary supply component for use in such a computer system (1).

Description

description

Computer system, expansion component,

Auxiliary supply component and its use

The invention relates to a computer system comprising a power supply unit for providing a

Operating power for the computer system and one with the

Power supply unit connected system board having a plurality of expansion ports for connecting a corresponding plurality of expansion components.

Moreover, the invention relates to a

Extension component and an auxiliary supply component for use in such a computer system.

Computer systems having a power supply unit and a system board with expansion ports for connecting expansion components are known in the art. For example, a variety of so-called personal computers (PCs) with a built-in power supply and a system board known. Typically, components mounted directly on the system board, such as a processor, and expansion boards plugged into system board connectors, such as

Graphics cards, provided on the system board

Power supply lines supplied with an operating voltage of the power supply. Other components, such as mass storage drives, are available via a separate

Cable connection directly from the power supply with a

Power supplied.

FIG. 7 schematically shows an example

System configuration of a computer system 1 according to the state of the technique. The computer system 1 comprises a system board 2, a built-in power supply 3 and three storage drives 4a to 4c. On the system board 2 in the embodiment, a processor 5, a chipset 6 and two

Expansion ports 7a and 7b are provided in the form of connectors for receiving expansion cards. in the

Embodiment, a graphics card 8 is inserted in the first expansion port 7a. The power supply 3 converts an externally provided

Mains AC voltage in one or a plurality of regulated DC voltages to supply the components of

Computer system 1 um. In the configuration according to FIG. 7, the power supply unit 3 transmits these supply voltages

Cable connections and corresponding connectors to the individual components. In particular, the power supply 3 via a respective connector 9 a to 9 c with the

Drives 4a connected to 4c. Furthermore, the power supply unit 3 is connected to the system board 2 via two further cable connections and plug connectors 10a and 10b. The over the

Connector 10a and 10b provided

Operating voltages are applied to the various components of the system board 2, including possibly the

Expansion ports 7a and 7b redistributed components. For this purpose, a voltage converter 11 is additionally provided in the exemplary embodiment, which converts the usually provided by the power supply 3 DC voltages of 5 and 12 volts in a suitable voltage for operation of the processor 5, for example, 1.5 volts converts.

In the exemplary embodiment, a particularly powerful graphics card 8 is accommodated in the expansion port 7a. The graphics card 8 in particular has a power consumption, those beyond one specified in a specification of a bus system or the expansion port 7a

Performance limit is. For example, the expansion port 7a is a slot according to the PCI Express (PCIe) standard with a maximum power output of 75 watts per slot and the graphics card 8 by one

High performance graphics card with a power consumption of up to 150 watts. In order to provide the additional power required for operating the graphics card 8, the computer system 1 according to FIG. 7 has a further cable connection with a further plug connector 12, via which the

Graphics card 8 is connected directly to the power supply 3.

To transfer data and commands between the

Memory drives 4a to 4c and the system board 2 and the components arranged thereon, in particular the chipset 6, serve three data connections 13a to 13c.

Computer systems such as that shown in Figure 7 allow for a modular and flexible system design. However, it is disadvantageous that the power supply 3 must be dimensioned such that it can supply all conceivable system configurations with a sufficient performance. Also, the power supply 3 must have cable connections and connectors 9, 10 and 12 in accordance with a variety of standards for a variety of possible components. This leads in many

System configurations for oversizing the

Power supply 3 and a concomitant reduction in energy efficiency. In addition, such causes

System construction on the part of the manufacturer unnecessary costs.

From EP 1 600 844 A2 a method and a

Device for providing increased power to a Memory arrangement of a memory subsystem of a computer known to increase memory performance and operational stability. In particular, it is intended to provide a power that is greater than the read level available through the motherboard of the computer. The device comprises a feed device for feeding a

Input voltage to the memory subsystem directly from a power source, such as in particular an ATX power supply.

From DE 696 36 406 T2 is a device for

Voltage regulation in a computer system with a

Voltage regulator module known. The apparatus is characterized in that the voltage regulator module is detachable and has a male receptacle assembly which has a plurality of mounted on the removable voltage regulator module

Plug-in receptacles for transmitting control signals and

Contains voltages. The device also has a

A connector which receives the plug-in module assembly of the removable controller module, wherein the connector is coupled to the computer system via a plurality of pins.

It is an object of the present invention to describe alternative construction concepts for computer systems. Preferably, the described computer systems should allow a high degree of modularity while being energy efficient in operation and cost effective to manufacture.

According to a first aspect of the invention is a

A computer system comprising a power supply unit for providing operating power to the computer system and connected to the power supply unit

System board with a plurality of expansion ports for connecting a corresponding plurality of

Expansion components described, each one

Expansion port a fixed power budget for

Supply of an associated expansion component

assigned. The computer system further comprises a first expansion component connected to a first expansion port and at least one disposed in the region of a second expansion port

Auxiliary supply component, wherein the

Auxiliary supply component electrically to the first

An expansion component is connected and configured to connect at least a portion of the power budget associated with the second expansion port to the first one

Submit expansion component.

The inventor of the present design concept has recognized that by providing a power budget of an unused expansion port to one connected to another expansion port

Expansion component can be dispensed with a larger dimensioning of a power supply unit in many system configurations. For example, one can

Expansion component the performance budget of two

be provided to adjacent expansion ports, provided that no additional expansion components connected to the second expansion port or their power budget is at least not exhausted. In this case, a total power budget of the computer system is maintained in every possible configuration, without the

To increase the output power of a power supply unit. At the same time, any special connectors provided for the supply of individual components only have to be provided by means of an auxiliary supply component in the computer system provided when they are actually needed, which reduces production costs.

Typically, the first expansion component includes an internal power consumer. Optionally, the first one

Expansion component also set up to at least a part of the recorded power to a

Additional component, such as a peripheral device to deliver. In this case, the internal power consumer and, if present, the additional component taken together have a power budget that is greater than that of the first

Extension port associated power budget.

Such a power supply concept for a computer system is particularly suitable for powering powerful graphics components, such as graphics cards, which are plugged into a connector according to the PCI Express (PCIe) or similar extension port and require the supply of an additional operating voltage via a supply cable. According to the invention, such graphics cards without the provision of a special power supply with a special power cable and a power budget associated with this supply cable

be used.

The auxiliary supply component may be, for example, an auxiliary supply card inserted in the second expansion port or an inserted one

Auxiliary supply act. Such, predominantly or completely passive auxiliary supply components allow a simple and cost-effective provision of further operating energy from the power budget, which is assigned to the second expansion port, to other components. Alternatively, the auxiliary supply component may include an auxiliary supply terminal disposed on the system board in the vicinity of the second extension terminal, and an auxiliary supply cable connected via a connector to the auxiliary supply terminal. The auxiliary supply cable blocks the plug when plugged in

Use of the second expansion port by another expansion component. By the spatially

Adjacent arrangement of the second expansion port and the auxiliary power supply port makes the alternative, but not simultaneous use of the two ports and the associated power budget easy

ensured. In addition, the provision of a special auxiliary supply card can be dispensed with in this case.

According to a second aspect of the invention is a

Expansion component for connection to a

Expansion connector on a system board

Computer system described. For example, it is an expansion card for plugging in one

Connector of a system board. It is the

Expansion port a fixed power budget for

Supply assigned to the expansion component. The

Expansion component includes a first connector for connecting the expansion component to the

Expansion port, a second connector for

Supplying one of the power budget of the

Extension terminal independent operating power and at least a third connector for supplying an additional component, in particular an external

Peripheral device, with one operating power. The

Expansion component further includes a with the first power connector, the second connector and the at least one third connector electrically connected power control, which is adapted to limit the power absorbed via the first connector on the fixed power budget and at least a part of one of the expansion component and / or taken over the at least third Disconnected connector

Operating power that exceeds the fixed power budget to receive from the second connector.

Such an expansion component allows the supply of additional components, in particular external

Peripheral devices, with an operating power that is above a power budget of a system board extension port. For example, a plurality of peripherals connected via USB ports can be supplied with a total power that is above the

Performance of an internal bus system or

Connector, such as a PCIe expansion slot.

According to a third aspect of the invention is a

Auxiliary supply component for connection to a

Expansion connector on a system board

Computer system described. For example, it is an auxiliary supply card for plugging into a

Connector of a system board. It is the

Expansion port a fixed power budget for

Supply assigned to the expansion component. The

Auxiliary supply component includes a first one

A connector for connecting the auxiliary supply component to the expansion port and a second connector for discharging at least a part of the Expansion port associated power budget to an expansion component of the computer system.

Such an auxiliary supply component is particularly suitable for supplying particularly powerful expansion components, for example according to the second aspect, in a modular computer system, for example according to the first aspect. The present invention is based inter alia on the idea of a part of a second

Expansion connector on a system board

Computer system associated power budget for at least partially supplying one at a first

To the expansion connector of the system board connected to the expansion component with an operating power too

with each expansion port assigned a fixed power budget.

Further advantageous embodiments of the invention are disclosed in the following description of embodiments and the appended claims.

The invention is described below with reference to

Embodiments with reference to the attached figures described in detail. In the figures show:

FIG. 1 shows a computer system according to a first embodiment of the invention,

Figure 2 shows an auxiliary supply card according to the first

Embodiment of the invention,

3 shows a computer system according to a second

Embodiment of the invention,

4 shows a computer system according to a third

Embodiment of the invention,

FIG. 5 shows an expansion component according to a fourth

Embodiment of the invention,

FIG. 6 shows an expansion component according to a fifth embodiment

Embodiment of the invention and

FIG. 7 shows a system configuration of a computer system

according to the prior art.

For reasons of clarity, the same reference symbols are used in the individual figures for identical or identically acting components of different configurations. Unless otherwise stated, the Description of the respective components also for the other embodiments. Multiple instances of similar components have an alphabetic suffix

characterized. If reference is made to all components of one type, the use of the alphabetical suffix is omitted.

FIG. 1 shows a computer system 1 according to a possible embodiment of the invention. The computer system 1 essentially comprises the same components 2 to 11 as the one

Computer system 1 according to FIG. 7. Deviating from this, in the computer system 1 according to FIG

low-power power supply component in the form of a power supply 3 with only four connecting cables and corresponding connectors 9a, 9b, 10a and 10b for the supply of

Components 4a, 4b and 2 are used. In an alternative, not shown embodiment, the

Power supply of the computer system 1 by at least one arranged directly on the system board 2

Voltage regulators. This is particularly suitable for very compact constructed Coputerysteme 1.

In the computer system 1 according to FIG. 1, only two are involved

Memory drives 4a and 4b provided over

corresponding connector 9a and 9b of the power supply 3 are supplied with an operating power and with

corresponding data terminals 13a and 13b with the

System board 2 are connected. The operating energy for all other components is transmitted via the connectors 10a and 10b to the system board 2 and distributed by this to the other components. To supply the graphics card 8, an auxiliary supply card 14 is provided in the computer system 1 according to FIG. The auxiliary supply card 14 has a connector 15 for connecting an auxiliary supply cable 16, which is connected to a further connector 12 for supplying the graphics card 8. In the exemplary embodiment, the two connectors 7a and 7b of the system board 2

for example, so-called PCIe X16 slots with a maximum power output of 75 watts. By combining the power budgets of the two expansion ports 7a and 7b by means of the auxiliary supply card 14, the graphics card 8 can thus be provided with a total power of 150 watts, without the power supply unit 3 being burdened beyond its capacity.

Figure 2 shows schematically the structure of

Auxiliary supply card 14. The auxiliary supply card 14 has in addition to the connector 15 a standard compliant

Plug-in connector 17 for insertion into the expansion port 7b. The connector 17 is part of a printed circuit board 18, in which the connector 15 in the illustrated

Embodiment is soldered directly. The printed circuit board 18 serves for the electrical connection of the

Connector 17 with the connector 15. In the

illustrated embodiment for a desktop computer, it also serves for the mechanical attachment of

Auxiliary supply card 14. For this is further one

Slot angle 19 attached to the circuit board 18. In an alternative, not shown embodiment for a server computer for insertion into a server rack can be dispensed with the slot angle, if the connector 17 and / or other means for fastening the

Auxiliary supply card 14 is sufficient. In another, also not shown variant of

Auxiliary supply card 14, this has no soldered connector 15. Instead, that's it

Auxiliary power supply cable 16 soldered directly to the circuit board 18 and terminates in the connector 12 for connection to the graphics card. 8

Optionally, on the auxiliary supply card 14 is a

Current limiting circuit 20 is provided. The

Current limiting circuit 20 serves to limit the power consumed by the connector 17 to a power

predetermined performance budget. This may be a purely passive component, such as a fuse, or an active electronic circuit, in particular, recognizes the type of expansion port 7, in which the auxiliary supply card 14 has been inserted. Provision of an additional current limiting circuit 20 can thus damage or overload the

Expansion port 7b, the system 2 and the

Power supply 3 are excluded in any case.

FIG. 3 shows a second exemplary embodiment of a

Computer system 1 according to the present invention. Of the

Structure of the computer system 1 essentially corresponds to that of the computer system 1 according to FIG. 3. Instead of the provision of an additional auxiliary supply card 14, the

Graphics card 8 shown in FIG 3 via an auxiliary power supply cable 16 supplied with additional operating power, which is inserted by means of a corresponding plug in an auxiliary power supply terminal 21 of the system board 2. Instead of the graphics card 8, another component of the computer system 1 can be supplied with an operating power via the auxiliary power supply cable 16. The auxiliary power supply terminal 21 is in one

Free space 22 of the expansion port 7b

arranged. Most standards for

Expansion components, such as the PCI Express standard, define such free-space areas 22. By arranging the auxiliary power supply terminal 21 in FIG

or below this free-space area 22, the simultaneous use of the auxiliary supply terminal 21 and the extension terminal 7b is practically prevented. When the auxiliary power supply cable 16 is inserted into the auxiliary power supply terminal 21, it mechanically prevents another expansion component from being inserted into the expansion port 7b. Conversely, one prevents in the

Extension terminal 7b arranged expansion component the use of the auxiliary supply terminal 21. This simple mechanical action can be a double

Use of the power budget of the second

Expansion port 7a be avoided.

FIG. 4 shows a further embodiment of a

Computer system 1 according to the present invention. In

Modification of the computer systems 1 according to FIGS. 1 and 3, the computer system 1 according to FIG. 4 has an additional storage drive 4c and an additional data connection 13c for connecting the third storage drive 4c. Unlike the computer system 1 according to FIG. 7, however, the power supply unit 3 still only has two cable connections

corresponding connectors 9a and 9b for supplying the first two storage drives 4a and 4b. In order to provide the third memory drive 4c nevertheless with an operating power, is in the expansion port 7b of the

System board 2 a special auxiliary supply plug 23rd used, which is connected via an auxiliary power cable 16 with another connector 9c. In this case, the auxiliary power supply connector 23 prevents the use of the expansion port 7b by other expansion cards. Instead, the power budget of the

Expansion slot in the area of

Extension terminal 7b for operating the third

Memory drive 4c used. Also in this case, therefore, a relatively simple power supply 3 having a relatively low power budget can be used.

The sharing of performance budgets of others

Expansion ports can also be used to power other powerful components than graphics cards and internal storage drives 4. Two examples of such use are shown in FIGS. 5 and 6.

FIG. 5 shows a USB expansion card 25. The USB expansion card 25 comprises a printed circuit board 18 with a plug connector 17 for inserting the USB expansion card 25 into an expansion port 7

Slotwinkel 19 includes the expansion card 25 in

Embodiment three USB ports 26a to 26c. The USB ports 26 are, for example, so-called Powered USB ports according to the USB standard 3.0 or a subsequent standard, such as the USB standard 3.1. On the circuit board 18, a USB controller 27 is arranged, which serves for data exchange of connected to the USB ports 26 peripherals with a component of the system board 2, for example, the chipset 6. In addition to the usual functions of a USB host controller, the USB controller 27 takes over, for example, a protocol conversion between the USB protocol and the PCIe protocol. In addition, the USB controller 27 monitors or configures the power consumption of peripheral devices connected to the USB ports 26. If the power output via the USB ports 26 is in the range of the power budget of the expansion port 7, for example a PCIe connector with a maximum power output of 75 watts, the peripheral devices are supplied via the power provided via the plug connector 17.

Detects the USB controller 27, however, that through the

Connection more powerful or special

For many peripherals, the power limit of 75 watts is exceeded, it controls a power controller 28 of the USB expansion card 25 so that it receives at least a portion of the necessary operating power via another connector 12. The connector 12 can not via an auxiliary power supply cable 16 (in Figure 5 not

shown), for example, with an auxiliary supply card 14 according to Figures 1 and 2, an auxiliary supply terminal 21 according to Figure 3 or an auxiliary supply plug 23 are connected according to Figure 4. Alternatively, a supply via an additional supply cable of a specially for the power supply of powerful graphics cards 8

prepared power supply 3 according to Figure 7 possible.

The power supply 28 detects that over the

Connector 12 no or not sufficient

Operating power is provided, it returns a corresponding status message to the USB controller 27, which then informs the peripheral device (s), his or her power consumption accordingly restrict. Alternatively or additionally, the USB controller 27 completely switches off one of the USB ports 26a to 26c in order to maintain the existing power budget. The USB expansion card 25 shown in FIG. 5 permits a particularly flexible provision of the

Available power of a power supply 3 on

Peripheral devices connected to the computer system 1. In this way, the computer system 1

For example, be adapted to newer versions of the USB protocol, without requiring an exchange of the

Power supply 3 or the chipset 6 is required.

FIG. 6 shows a further embodiment of the invention in the form of a network card 30. The network card 30 has four network connections 31a to 31d on the side of a slot angle 19. The network connections 31a to 31d are connected to one another via a network controller 32, for example a switch module or a hub module. The

Network ports 31a-31d are operated by the network controller 32 as so-called Power-over-Ethernet ports. The network card 30 assumes the function of energy supplier (English: Power Sourcing Equipment, PSE). To the network connections 31 energy consumers (English: Powered Devices, PD) such as so-called VoIP phones can be connected.

Depending on the available power class of the connected

Network components can be connected via the connections 31

total power is above a power budget of a PCIe connector of the system board 2. To the

Compensation of any missing power budget is on a circuit board 18 of the network card 30 as shown below Referring to Figure 5 above, a power supply circuit 28 and a connector 12 for powering the network card 30 from one

Auxiliary supply component provided.

Designed for Power over Ethernet (PoE)

Supply voltage of typically 36 to 57 volts is above the typically provided by a power supply 3 supply voltage of the computer system 1. To convert the supply voltage of the computer system 1 to the output via the network terminals 31 voltage is used in the

Embodiment according to Figure 6, a voltage converter 33. Im

Embodiment is the voltage converter 33 in the

Power supply 28 integrated. The voltage converter 33 is connected either via a power supply line of the connector 17, a power supply line of the connector 12, or a combination of both

Power sources supplied with an operating power.

For example, it may be a switching converter with two parallel switching stages, whose

Switching stages are connected to the connector 17 and the connector 12.

The embodiments described in FIGS. 1 to 6 can be combined with each other in a variety of ways.

In addition, further modifications of the

inventive concept possible. For example, to supply expansion components with even higher

Power consumption the power of three or more

Expansion ports are cascaded together. In particular, in the provision of an electrical connection between a plurality of adjacent arranged expansion cards according to the daisy chain principle, it is advantageous to provide a control circuit on each of the expansion cards, which monitors the energy consumption of the respective card and controls the transfer of any excess energy to adjacent cards. In addition, it is also possible to have expansion ports of different types for the purpose of powering each other

combine. For example, the power budget of a slot connector for receiving an expansion card and a post connector or a receptacle for connecting a supply cable of an internal device, such as

For example, an internal storage drive can be combined.

Furthermore, a power and data supply can be combined in many cases. For example, a

Graphics card with a modified Displayportanschluss are provided, in addition to the graphics data in addition also the operating power to operate a display,

especially a liquid crystal monitor. In this case, for example, a

Graphics processor of a graphics card from the power budget of the slot are supplied, in which the graphics card itself is plugged. The additional power for the externally connected display can be made available to the graphics card via an auxiliary supply component according to one of the embodiments described above.

In addition to the supply of graphics components, such an arrangement is of course also suitable for

Power supply from external mass storage devices, printers or scanners via a data cable with an integrated supply line. In this case, offers in particular the use of a USB port according to the USB standard 3.1 with a power profile of more than 75 watts, for example, the power profile 5 with 100 watts.

Reference sign list

1 computer system

2 system board

3 power supply

4 storage drive

5 processor

6 chipset

7 expansion port

8 graphics card

9 connectors

10 connectors

11 voltage transformers

12 connectors

13 data connection

14 auxiliary supply card

15 connectors

16 auxiliary power cables

17 connectors

18 circuit board

19 slot angles

20 current limiting circuit

21 auxiliary supply connection

22 free space

23 auxiliary supply plug

25 USB expansion card

26 USB port

27 USB controllers

28 Performance control

30 network card

31 network connection

32 network controllers

33 voltage transformers

Claims

claims

A computer system (1) comprising:

a power supply unit for providing an operating power to the computer system (1);

one connected to the power supply unit

System board (2) with a plurality of

Expansion ports (7) for connecting a

corresponding plurality of extension components, each extension port (7) being a fixed one

Power budget to supply an associated

Extension component is assigned;

a first connected to a first expansion port (7a) of the system board (2)

Extension component; and

at least one in the area of a second

Extension terminal (7b) of the system board (2) arranged auxiliary supply component, wherein the

Auxiliary supply component is electrically connected to the first expansion component and adapted to at least a part of the second

Extension port (7b) associated power budget to the first expansion component.

2. Computer system (1) according to claim 1, wherein the first

Extension component comprises an internal power consumer, in particular a data processing unit, and wherein the internal power consumer has a power consumption that is greater than that of the first

Expansion port (7a) associated power budget.

3. Computer system (1) according to claim 1, wherein the first

Expansion component an internal power consumer, in particular a data processing unit, and a terminal (26, 31) for supplying an additional component, in particular an external peripheral device, with an operating energy, and wherein the internal

Electricity consumers and the additional component

taken together have a power consumption that is greater than the power budget associated with the first expansion port (7a).

Computer system (1) according to one of claims 1 to 3, wherein at least the first expansion port (7a) and the second expansion port (7b) are designed as similar connectors, in particular for receiving internal expansion cards.

The computer system (1) according to any one of claims 1 to 4, wherein the first expansion port (7a) for receiving an internal graphics component as the first

Expansion component is designed, in particular as a connector according to the Peripheral Components

Interconnect Express, PCIe, or as PCI for Graphics, PIG, Standard for receiving a graphics card (8), and wherein the graphics component comprises a connector (12) for supplying an additional operating voltage via an auxiliary power cable (16).

The computer system (1) of any one of claims 1 to 5, wherein the auxiliary supply component is one in the second

Expansion port (7b) inserted

Auxiliary supply card (14) or one in the second

Expansion port (7b) inserted

Auxiliary supply plug (23). A computer system (1) according to any one of claims 1 to 5, wherein the auxiliary supply component is one on the

System board (2) near the second one

Expansion port (7b) arranged

Auxiliary supply terminal (21) and a by means of a connector to the auxiliary supply terminal (21) connected auxiliary supply cable (16), wherein the auxiliary supply terminal (21) in the inserted state blocks the use of the second expansion port (7b) by a further expansion component.

Expansion component for connection to a

Expansion port (7) of a system board (2) of a computer system (1), in particular an expansion card for insertion into a connector of a system board (2), wherein the expansion port (7) is assigned a fixed power budget for supplying the expansion component, comprising:

a first connector (17) for connecting the

Expansion component to the expansion port (7); a second connector (12) for supplying an operating power independent of the power budget of the expansion port (7);

at least one third connector for supplying an additional component, in particular an external one

Peripheral device, with an operating power; and

a power controller (28) electrically connected to the first connector (17), the second connector (12) and the at least one third connector and configured to limit the power consumed by the first connector (17) to the fixed power budget; at least part of a component taken up by the expansion component and / or via the at least third connector output operating energy, the fixed

Power budget exceeds that of the second

Pick up connector (12).

The expansion component of claim 8, further comprising a voltage converter (33), the voltage converter

(33) is set up one over the first

Connector (17) and / or the second connector

(12) provided to convert the first operating voltage into a second, provided via the at least one third connector operating voltage.

10. expansion component according to claim 8 or 9, wherein the at least one third connector as

Peripheral device connection (26, 31) to the combined

Transmission of an operating voltage and data, in particular as Universal Peripheral Bus, USB, port (26) or Powered USB port, configured, the data for the third connector on the first

Connectors (17) to the system board (2) are transmitted.

Auxiliary supply component for connection to a

Expansion port (7) of a system board (2) of a computer system (1), in particular auxiliary supply card (14) for insertion into a connector of the

System board (2), wherein the expansion port (7) has a fixed power budget to supply the

Associated with an expansion component, comprising:

a first connector (17) for connecting the

Auxiliary supply component to the extension port (7); a second connector (15) for discharging at least a part of the extension port (7)

allocated power budget to a

Expansion component of the computer system (1).

12. Use of a part of a second

Expansion port (7b) of a system board (2) of a computer system (1) associated power budget for at least partially supplying a at a first expansion port (7a) of the system board (2)

connected expansion component with a

Operating power, each expansion port (7) is assigned a fixed power budget.